BHP+30 hp (18%)
Standard
170 hp
Tuned
200 hp
Torque+60 Nm (26%)
Standard
230 Nm
Tuned
290 Nm
Suitability
Moderate (5.5/10)Gains Profile
Torque-focusedHeadroom
HighSubaru Legacy 2.5 170hp ECU Remapping
Considering an ECU remap for your Subaru Legacy 2.5 170hp? A Stage 1 remap can take this 2008 - 2014 petrol engine from 170 BHP to 200 BHP and from 230 Nm to 290 Nm of torque (naturally aspirated). This engine scores 5.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Subaru Legacy can achieve.
How this engine compares
- 1stof 6 Subaru Legacy engines by power gain
- 39%of the 9,842 engines we hold gain data for see a smaller power increase
- 41%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Subaru Legacy 2.5 170hp is a 2.5L naturally aspirated petrol engine producing 170 BHP and 230 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 200 BHP and 290 Nm — a gain of around 30 BHP (18%) and 60 Nm (26%).
This engine has moderate remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. The tuning headroom is classified as high, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.. Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!Naturally aspirated engine: gains are usually limited; results vary widely.
!Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.
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